LED lighting in 2019: What have we learned?

Another year has passed and a new one has just begun. What knowledge can we share and what has 2019 learned when we talk about lighting? It was the year when LED again showed its superiority, and advising by light is not just light but you can it to much more than its function to light up an area.

In this year's first blog post, we go through 3 areas where LED lighting’s development in the previous year.

LED Lighting and Health

An Oregon State University study shows that the blue wavelengths produced by LEDs will damage cells in the brain and retina if you are exposed to flashing light for an extended period of time. Blue light can e.g. come from devices like your smartphone. It has shown it can – long term – affect your lifetime, even if the light does not shine directly in your eyes. The study itself has been tested on a fruit fly but the technology has not been used long enough to conclude its effect across people’s lifetime.

That being said, we see a development, by the human lifetime, have raised in the last year. Due to artificial light, among other things is the reason for treating diseases. Science tells us that by designing spectrum of light it can help improve sleep patterns, well-being and overall health issues.

LED can Help Boost Milk Production

English farmers in particular have felt the pressure of rising prices, and have used LED lighting to boost cows' milk production. Analyzes show that if cows are exposed to 16-18 hours of light with a minimum of 160-200 lux, followed by up to 8 hours of darkness, this will have a positive impact on production. The method is the same thing that happens to us humans, as the light sends a signal to express the release of the hormone called melatonin, which will affect an increase in the mammary gland to produce more milk.

Research has been done in this area and shows that milk production can increase by two liters per day, compared to cows exposed to only 13 hours of constant light daily.

Blue and Red Light in Offices

Researchers from LRC (Lighting Research Center) at Rensselaer Polytechnic Institute and U.S. The General Services Administration published a series of analyzes showing how different light affects us humans. If you choose to combine a more bluish light in the morning in offices and a red light in the afternoon, it makes employees more attentive, productive and less sleepy.

Generally, most people do not get enough light during the day. There is a correlation between too little light during the day, means too much light at night. It is natural for us humans to use electronic devices when we get home, but the light from the screens cheats your brain to think it's time to wake up or vice versa. Disruption in our circadian rhythm of light and dark will affect the biological system and cells of the brain. Circadian rhythm disorders are associated with human rest vs. activity patterns that can affect our productivity, overall health and well-being.

We can conclude that there is a great deal of focus on studies and analyzes on the impact of the LED on humans. At Lumega, we are up-to-date with developments and we look forward to seeing what 2020 can offer from knowledge as well as learning.


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